公开(公告)号：EP0044840A4

公开(公告)日：1982-08-05

申请号：EP81900195

申请日：1980-12-23

申请人： MINNESOTA MINING & MFG

发明人： LEWIS TERRY W ,  ANDERSON ROGER J ,  KERFELD DONALD J ,  LIEN LARRY A

IPC分类号： C08G59/02 ,  B32B3/30 ,  C08G59/00 ,  C08G77/14 ,  G11B3/20 ,  G11B3/70 ,  G11B7/24 ,  G11B11/00 ,  G11B23/00 ,  G11B23/18 ,  H04N5/76

CPC分类号： G11B3/705 ,  G11B23/0057

摘要： Information carrying discs, such as video discs, tend to be damaged by marking, abrading and grease or solvent. It has been found that transparent polymeric compositions having a specified resistance to abrasion may be used in the formation of information carrying discs.